AC water leaks are a rare occurrence when you have a well-maintained HVAC system. However, they can happen, so don’t panic if it happens to your air conditioner. Learn to recognize the signs and probable causes and what you can do to address the issue.

Condensate Drain

The condensate drain and pan are the most common source for an AC leak. The condensate line and pan are where the excess moisture in the home goes after it’s removed from the air by way of the evaporator coils. Usually the moisture drains away to the outdoors, but when the line gets clogged, the drain pan may overflow. Over time, an obstruction of dirt and moisture may form — a kind of sludge that may stick in the line or drain opening. Regular maintenance can help prevent these clogs: the HVAC tech pours bleach into the line or, if there’s a clog present, they will use a wet/dry vacuum.

There are a couple of telltale signs that condensate drain overflow is happening: dripping sounds from inside the unit and a puddle on the floor beside the air conditioner are two of the biggest signs.

Dirty Air Filter

A dirty air filter can cause lots of problems, AC water leaks among them. The dirty air filter prevents good airflow, which prevents the evaporator coils from removing the moisture from the home’s air properly. The condensation may freeze and then melt, leaking out of the system.

Refrigerant Leak

Another reason for water leaks has to do with leaking refrigerant. When refrigerant gets low, pressure is lowered and the AC can’t cool air. As it tries to remove moisture from the air on the evaporator coils, condensation freezes, then drips off the evaporator coils, sometimes in a puddle on the floor.

AC water leaks can usually be dealt with quickly, but problems may arise when the leak occurs while you’re away from home for a matter of days. It’s always a good idea to have someone check on your home while you’re gone.

For more on AC water leaks, contact Mowery Heating, Cooling and Plumbing, serving greater Indianapolis.

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